Beth Frates, MD, a pioneer in Lifestyle Medicine education, is an award-winning teacher at Harvard University who helps patients adopt and sustain healthy habits. In 2008, she developed the Lifestyle Medicine Interest Group concept for medical schools that do not currently offer a course on Lifestyle Medicine and has successfully run an LMIG at Harvard Medical School (HMS) since that time, for which she was voted president of the American College of Lifestyle Medicine. Christopher Duggan, MD, MPH, is a pediatric gastroenterologist and nutrition physician at Boston Children's Hospital, where he runs the Center for Nutrition. He is co-director of the Harvard College course "Nutrition and Global Health," professor of pediatrics at Harvard Medical School, and professor in the Departments of Nutrition and Global Health and Population at the Harvard TH Chan School of Public Health. Marie-France Hivert, MD, is an associate professor in the Department of Population Medicine, director of the Nutrition and Lifestyle Medicine curriculum and the co-director of the advanced integrated science course "Metabolism, Nutrition, and Lifestyle Medicine" at Harvard Medical School. She is also a clinical investigator with a primary focus on the etiology and primordial prevention of obesity and related co-morbidities, particularly type 2 diabetes and gestational diabetes.